Are you trying to enable Qualcomm Diagnostic Mode or Qualcomm DIAG port to write or repair IMEI / change IMEI number of any Qualcomm snapdragon mobile? If yes then you have landed on right place and today we will show you all possible method to enable DIAG port for any Qualcomm devices.

DIAG port is an Diagnostic Mode to test different hardware or software working process. If you want to learn more about Qualcomm Diagnostic Mode [DIAG PORT], please visit on this link.

Probably, you may know that Diag port must be enabled on Qualcomm phones to write or repair IMEI number. Once you have DIAG port enabled Qualcomm device in your hand, you are free to repair or change IMEI number of your own device using QPST tool, QFIL tool, miracle tool or any other Qualcomm IMEI repair tool.

Enable Qualcomm Diagnostic Mode [DIAG PORT]

Video : All Methods To Enable DIAG Mode Without Root & With Root

Method 01: Enable Qualcomm Diagnostic Mode [DIAG PORT] Using Code

This is the easiest method to enable DIAG port for any Qualcomm phones using phone dialler app but DIAG port code may be different for different device. Do Google to find correct code to enable DIAG port of your device. Otherwise, try the below codes one by one.

Launch it properly and allow root access. [Supersu will ask you for root privilege]

Once the emulator opened properly, execute the following commands one by one.

Su

setprop sys.usb.config diag,adb

Method 03: Enable Qualcomm Diagnostic Mode [DIAG PORT] Using Command

This is an another method to enable DIAG COM PORT in all Qualcomm android phones. But its required a rooted device. Without having root access, you can’t enable Diagnostic Mode [DIAG PORT] on your device.

How TO Check Qualcomm Diagnostic Mode [DIAG PORT] Enabled Or Not?

Follow the instructions to check status of DIAG PORT on pc.

Go to your pc and open “Device manger” option.

Once you are into “device manager”, check “PORTS (COM &LPT) section. If you are able to “Qualcomm HS-USB Android DIAG 901D COM” that means device is successfully connected with pc into DIAG Port. Otherwise, repeat the process again.

These are all possible ways to enable DIAG port on any Qualcomm CPU based android devices like Xiaomi, Lenovo etc.

Try all the methods one by one as shown in tutorial and start DIAG COM Port on device. Method 01 is for both rooted and non-rooted device. But Method 02 &* Method 03 are only and only for rooted devices.